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This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

This activity aims to stimulate discussion on the question of whether computers can exhibit “intelligence,” or are ever likely to do so in the future.

This activity explores what it means for a computer to be intelligent and introduces the topic of what a computer program is and how everything computers do simply involves following instructions writ